Hello, can you help me solve this problem here? I guess my computer has some kind of malware, as this prompt message always pop up and asks me to install AV Defender Professional. What is this? I don’t want to install it, and I have installed AVG and Avira on computer. I don’t need this one, but it always pop up, sometimes my computer just gets stuck there and I have to restart computer. I go to control panel but don’t find any suspicious program there. I don’t what happen to computer. Something should be downloaded in computer.

Brief Introduction to AV Defender Professional

AV Defender Professional has been classified as a fake antivirus or rogue program which aims defrauding PC users’ money. One this fake program is installed into targeted computer; it will create many harmful activities. After it’s installed, it will activate itself and immediately make a full scan for a whole computer automatically. After a full scan, it will tell you that your computer now is infected with many viruses or malware and shows you that many files and programs are infected. When users find that their computer has so many infections, they will worry their computer security state, and then soon choose to clear those so-called viruses. Once you click on ‘’Remove All “button, this program will continue to guide you buy a full or registered version of this program to clear all threats on computer. Actually those warning alerts and infected files listed by this AV Defender Professional after a so-called security scanning are fake and don’t exist on targeted computer at all, since this fake antivirus has no ability to load and update its virus definition database or any features that would allow this application to detect any of  security infections listed. The real aim of AV Defender Professional virus is to trick computer users into paying money for a fake advanced version.

AV Defender Professional is not only a fake antivirus program but also a scam virus to severely attack computer. Hackers create this malicious program then use it to infiltrate operating system by inserting it into infected spam email attachment, torrent downloads and security exploits, etc .. When this fake program is installed into computer, it will carry out damages to system. It will change browser settings and slow down Internet speed. It is slow to browse on the Internet and hard to load a new page, even the browser will crash down and you have to run it again. And you may get redirected by hijacker to unknown page, disturbed by pop-up ads, fooled by fake update message. Sometimes, your DNS is changed and you cannot access the Internet. What’s worse, AV Defender Professional will exploit system flaws to bring other infections to mess up system.  System resource will be eaten up by junk files created by those threats. The CPU usage becomes higher than before and computer runs very slow. This AV Defender Professional together with other threat has ability to corrupt system important files and program and even can disable executable files or key files of antivirus, which will destroy firewall of antivirus and disable antivirus program. System will become more vulnerable and more loopholes will happen. If you cannot remove it timely, computer will gradually be destroyed by this rogue program. Therefore, please eradicate it soon as you find it on computer.

A Screenshot of This AV Defender Professional Infection (Fake Antivirus Alert)


Properties of the Fake Anti-virus Spyware

-Always pops up once you boot up your computer or run a program, claiming your computer is in great risk

-Asking you to purchase a code to activate this software, so that it can help you to remove the threats in your computer

-Can modify the computer registry once it is installed into the computer

-Can prohibit legit program to run, including your anti-virus programs

-Can occupy a great usage of CPU, which slows down the performance of computer or even causes blue screen

Finding all or some of these symptoms on your computer, sorry to say that your computer is infected by AV Defender Professional. Please contact YooSecurity Online PC Experts for manual removal guide. Also, we will provide a short removal guide below for computer literate.

Manual Removal Guide of Fake Anti-virus Program (For Computer Literate)

There is a removal guide provided here; however, expertise is required during the process of removal, please make sure you are capable to do it by yourself.

Step 1: Try to access the Safe mode with Networking.

In order to get into this mode, you should restart your infected computer and tap F8 key constantly when computer is booting back up to get safe mode options on the screen, use arrow keys to highlight the option you want to enter then press E/Enter key. * Usually, this rogue program will be disabled from automatically starting in safe modes. Users will be able to fix the AV Defender Professional problem without constantly blocks from the fake AV. If you are a Windows 8 user, click here and learn how to boot up Windows 8 to safe mode.


For those computer which are XP operating systems, you will need to you choose your XP system after you choose safe mode with networking, you can press Enter directly without choosing any thing.

safe mode system choose

After loading files, you need to log in your account to get the safe mode with networking, for XP users, please choose Yes when you see the dialog.


Step 2: Find Ctrl, Alt, and Delete these 3 keys and then press them together to open task manager to end the process related to AV Defender Professional, the name of the process of it is random.

XP task manager

Step 3:Click on Start button at the right lower corner, then click on Control Panel, then you will come to the Control Panel windows, click on Add and Remove Programs.


Then try to find AV Defender Professional, highlight it and choose Remove.


Step 4: Click on Start button or press Win+R, then type regedit in the box to open Registry Editor, after that, try to find
C:\Users\profile name here\AppData\

Video Guide on How to Remove Rogue Program:

YouTube Video Removal Guide:


Once AV Defender Professional virus is installed to your computer it will be configured to run automatically along with the operating system, and each time when you start up your computer it will pretend to be computer internet security software to run and display fake security state of your computer to scare you. It aims at cheating out of your money by recommending you to purchase its fake full version. This fake antivirus also performs destructive activities on your computer. It damages the main system files to make it be able to pop up even under troubleshooting mode such as safe mode and safe mode with networking. It damages some fatal system to slow down computer performance. What you should do promptly is to remove fake AV Defender Professional and install a real reputable antivirus program to protect your computer instead of a fake one.

Suggestion: To follow removal guide that mentioned above, a quite level of computer knowledge is needed. Still can’t get out of AV Defender Professional virus? Contact online experts for help now!

Published by Tony Shepherd & last updated on September 3, 2015 3:46 am

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